README.md

---
license: mit
pretty_name: OpenRCA-2.0-Lite v2 (500 cases, fault-kind rebalanced)
tags:
  - root-cause-analysis
  - rca
  - microservices
  - observability
  - traces
  - metrics
  - logs
  - openrca2-lite
  - openrca2-lite-v2
size_categories:
  - n<1K
---

# OpenRCA-2.0-Lite v2 — fault-kind rebalanced

500-case curated RCA evaluation set, **rebalanced 2026-05-03** from the same
1 464-case pool as [openrca2-lite-v1](https://huggingface.co/datasets/lincyaw/openrca2-lite-v1)
but with diversity caps tuned for **fault-kind richness** rather than raw graph size.

## What changed vs v1

v1 had ~34 % pod-killer cases (PodFailure / PodKill / ContainerKill, single-leg or as
a leg of a hybrid). Under the v2 evaluation contract — which scores `network_*` faults
on `direction.src/dst` and `jvm_*`/`http_*` on optional `method` — pod-killer cases are
essentially trivial: the killed service goes silent, all calls to it 5xx, no
`direction` / `method` is required for full credit. v2 caps that family aggressively
and reallocates the budget to subtype-rich families.

| | v1 | v2 | Δ |
|---|---:|---:|---:|
| pod-killer total share | 34.4 % | **22.0 %** | −12.4 pp |
| single-leg `Pod*` | 92 | 50 | −42 |
| `hybrid_kill` | 80 | 60 | −20 |
| `HTTP*` (8 subtypes) | 54 | 77 | +23 |
| `Network*` (6 subtypes) | 66 | 72 | +6 |
| `JVM*` | 26 | 35 | +9 |
| `hybrid_clean` (real multi-root difficulty) | 140 | 163 | +23 |
| trivial cases (`longest_path == 2`) | 141 (28 %) | 116 (23 %) | −25 |
| mean `longest_path` | 3.46 | 3.64 | +0.18 |

## Composition

500 cases · hybrid : leaf = 223 : 277 (44.6% : 55.4%) · pod-killer share = 110/500 = 22.0%

### Chaos family

| family | count | % |
|---|---:|---:|
| `hybrid_clean` | 163 | 32.6 % |
| `HTTP*` | 77 | 15.4 % |
| `Network*` | 72 | 14.4 % |
| `hybrid_kill` | 60 | 12.0 % |
| `Pod*` | 50 | 10.0 % |
| `*Stress` | 43 | 8.6 % |
| `JVM*` | 35 | 7.0 % |

### Single-leg subtype distribution (excluding hybrid)

| subtype | count |
|---|---:|
| `JVMMemoryStress` | 41 |
| `NetworkDelay` | 33 |
| `JVMException` | 25 |
| `PodFailure` | 25 |
| `ContainerKill` | 20 |
| `NetworkPartition` | 18 |
| `HTTPResponseReplaceCode` | 16 |
| `HTTPRequestAbort` | 13 |
| `HTTPResponseReplaceBody` | 10 |
| `HTTPRequestReplaceMethod` | 9 |
| `NetworkCorrupt` | 9 |
| `NetworkLoss` | 9 |
| `HTTPResponseAbort` | 8 |
| `HTTPResponseDelay` | 7 |
| `HTTPRequestReplacePath` | 7 |
| `JVMReturn` | 7 |
| `PodKill` | 5 |
| `HTTPRequestDelay` | 5 |
| `NetworkBandwidth` | 3 |
| `JVMLatency` | 2 |
| `JVMCPUStress` | 2 |
| `HTTPResponsePatchBody` | 2 |
| `JVMMySQLLatency` | 1 |

### System × source pool

| system | count | source pool |
|---|---:|---|
| `ts` | 340 | mixed |
| `hs` | 96 | mixed |
| `otel-demo` | 64 | mixed |

`source: old` = 0 (FSE/openrca2 set) · `source: new` = 500 (aegisctl detector_success last 48 h)

### `longest_path` distribution (service-level DAG)

| `longest_path` | count |
|---:|---:|
| 2 | 116 |
| 3 | 176 |
| 4 | 95 |
| 5 | 52 |
| 6 | 32 |
| 7 | 6 |
| 8 | 22 |
| 9 | 1 |

min=2 · p25=3 · p50=3 · p75=4 · max=9 · mean=3.64

## Files

```
dataset/
├── README.md           (this file)
├── MANIFEST.json       (HF-format curation summary + 500 case entries)
├── manifest.jsonl      (500 lines, one JSON object per case)
└── cases/
    └── <case_name>/    (telemetry parquets + injection.json + causal_graph.json)
```

Each case dir contains:
- `abnormal_metrics.parquet` / `normal_metrics.parquet`
- `abnormal_traces.parquet`  / `normal_traces.parquet`
- `abnormal_logs.parquet`    / `normal_logs.parquet`
- `abnormal_metrics_histogram.parquet` · `abnormal_metrics_sum.parquet`
- `injection.json`     (chaos-mesh ground truth)
- `causal_graph.json`  (regenerated 2026-05-02 with rcabench-platform `reason batch`)
- `conclusion.parquet` · `env.json`

## `manifest.jsonl` schema

| field | example | notes |
|---|---|---|
| `name` | `ts5-ts-route-plan-service-loss-wkm5kz` | matches `cases/<name>/` |
| `source` | `old` / `new` | which pool the case came from |
| `system` | `ts` / `hs` / `otel-demo` | benchmark name |
| `longest_path` | `5` | service-level DAG longest directed path (node count) |
| `n_svc` | `7` | distinct services in graph |
| `n_edge` | `9` | unique service-level edges |
| `n_alarm_svc` | `4` | services that appear in `alarm_nodes` |
| `root_services` | `["mysql"]` | injection target(s) |
| `chaos_family` | `Network*` / `hybrid_clean` / … | aggregated bucket |
| `primary_kind` | `NetworkDelay` / `hybrid` | raw chaos_type or `hybrid` for multi-leg |
| `subtypes` | `["NetworkDelay", "CPUStress"]` | every chaos_type in `engine_config` (NEW in v2) |
| `hybrid` | bool | multi-leg injection? |
| `has_kill_leg` | bool | NEW — at least one PodFailure/PodKill/ContainerKill leg? |
| `src_path` | `/home/ddq/.../<case>` | absolute path of underlying datapack on the curator's machine |

## Intended use

Built to evaluate LLM/agent RCA pipelines under a **type-aware** scoring contract
([rcabench-platform `evaluation/v2`](https://github.com/OperationsPAI/aegis/tree/main/rcabench-platform/src/rcabench_platform/v3/sdk/evaluation/v2)):

- `network_*` → must produce `direction.src` + `direction.dst`
- `jvm_*` / `http_*` → optional `class.method` for bonus
- hybrid → score per ground-truth fault, not as a set intersection
- every claim must carry a re-runnable DuckDB SQL on the case parquets

## Citation

Curated by `lincyaw` from the OpenRCA-2.0 / RCABench corpus. If you use this dataset in
research, please cite the originating RCABench / OpenRCA-2 papers and reference this
specific dataset version (`openrca2-lite-v2`).